Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
46521 (1979 MM7)
Classification: Main-belt Asteroid          SPK-ID: 2046521
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1882188582078072 3.1312e-08  
a 2.201070290994442 7.7735e-09 au
q 1.786787353988342 7.008e-08 au
i 3.464884357264661 3.6749e-06 deg
node 160.9396916337569 6.0426e-05 deg
peri 101.4634175437357 6.1365e-05 deg
M 270.218621596206 9.6445e-06 deg
tp 2459497.963074783948
(2021-Oct-10.46307478)
3.2147e-05 TDB
period 1192.749641697372
3.27
6.3186e-06
1.73e-08
d
yr
n .3018236077503179 1.5989e-09 deg/d
Q 2.615353228000542 9.2366e-09 au
  Orbit Determination Parameters
   # obs. used (total)      531  
   data-arc span      15249 days (41.75 yr)  
   first obs. used      1979-06-23  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55002  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:39:08  

Additional Information
 Earth MOID = .773565 au 
 Jupiter MOID = 2.45893 au 
 T_jup = 3.639 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.85   n/a MPCxxxxx  

46521 (1979 MM7)          Discovered 1979-Jun-25 by Helin, E. F., Bus, S. J. at Siding Spring
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-16 02:49 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin